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Ostrovityanka [42]
3 years ago
12

Which research method uses questionnaires to collect information about the participants in a study?

Physics
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer: survey research method.

Explanation: The survey research method studies the samples of individual units. It is a good way of collecting data from the participants of a study by using questionnaries. Surveys are useful to gather results that will be important in the future study.

Dima020 [189]3 years ago
3 0
Survey research method uses questionnaires to collect information about the participants in a study.It is commonly used method of collecting information about a population of interest.
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During a visit to the beach, you get in a small rubber raft and paddle out beyond the surf zone. Tiring, you stop and take a res
Monica [59]

Answer:

The main difference in these two movements is that the first is a pure swing movement and the followed form a wave travels from the beach

Explanation:

The movement in the two parts is very different, when the surf zone has passed it is in a deeper part of the water where the seabed does not rise much, therefore due to the movement of the waves there is an upward oscillatory movement and descending, in this movement there is no horizontal displacement.

When it is within the southern zone, there is a rapid rise of the sea floor, which generates a horizontal movement, having a traveling wave, therefore your movement is more complicated, you can have some oscillating movement on the axis and, but in addition to this you have a horizontal movement that reaches you towards the beach, forming a Traveling wave.

The main difference in these two movements is that the first is a pure swing movement and the followed form a wave travels from the beach

3 0
3 years ago
Witch is least likely to break? explain?
Reptile [31]
Work Done = Force * Distance

This means the least work is exerted by the most distance, so the longer ones are less likely to break.

The shortest one will be the one that breaks easiest.
4 0
3 years ago
In which region of the Sun does energy move as waves that transfer from atom to atom? photosphere corona core radiative zone chr
Tatiana [17]

Answer : Option B) Radiative zone

Explanation : The sun consists of many zones in it. Particularly in the radiative zone, the energy is primarily transported toward the exterior side by the process of radiative diffusion and thermal conduction, rather than by convection. Energy travels through the radiation zone in the form of electromagnetic radiation as photons and energy is transformed from atom to atom.

5 0
4 years ago
Read 2 more answers
By what factor does the peak frequency change if the celsius temperature of an object is doubled from 20.0 ∘c to 40.0 ∘c?
mart [117]

Answer:

it increases by a factor 1.07

Explanation:

The peak wavelength of an object is given by Wien's displacement law:

\lambda=\frac{b}{T} (1)

where

b is the Wien's displacement constant

T is the temperature (in Kelvins) of the object

given the relationship between frequency and wavelength of an electromagnetic wave:

f=\frac{c}{\lambda}

where c is the speed of light, we can rewrite (1) as

\frac{c}{f}=\frac{b}{T}\\f=\frac{Tc}{b}

So the peak frequency is directly proportional to the temperature in Kelvin.

In this problem, the temperature of the object changes from

T_1 = 20.0^{\circ}+273=293 K

to

T_2 = 40.0^{\circ}+273 = 313 K

so the peak frequency changes by a factor

\frac{f_2}{f_1} \propto \frac{T_2}{T_1}=\frac{313 K}{293 K}=1.07

8 0
3 years ago
in terms of mechanical advantage and velocity ratio write an expression for the efficiency of a simple machine​
mixer [17]

Answer:

Efficiency = (MA/VR) ×100%

8 0
3 years ago
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